搭建高可用wordpress(keepalived+HAProxy)

配置keepalived

分别在两台haproxy上安装keepalived

[root@haproxy1 ~]# yum install keepalived

配置haproxy1上的keepalived

1.修改配置文件

[root@haproxy1 ~]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived

global_defs {
notification_email {
root@mylinuxops.com
}
notification_email_from root@mylinuxops.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id s1.mylinuxops.com
vrrp_skip_check_adv_addr
vrrp_iptables
#vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
}

vrrp_instance VI_1 {
state MASTER
interface ens33
virtual_router_id 27
priority 100
advert_int 2
authentication {
auth_type PASS
auth_pass 1111
}
unicast_src_ip 192.168.27.13
unicast_peer {
192.168.27.14
}
virtual_ipaddress {
192.168.27.50 dev ens33 label ens33:0
}
}

重启服务

[root@haproxy1 ~]# systemctl restart keepalived

配置haproxy2上的keepalived

1.修改配置文件

[root@haproxy2 ~]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived

global_defs {
notification_email {
root@mylinuxops.com
}
notification_email_from root@mylinuxops.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id s2.mylinuxops.com
vrrp_skip_check_adv_addr
vrrp_iptables
#vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
}

vrrp_instance VI_1 {
state BACKUP
interface ens33
virtual_router_id 27
priority 80
advert_int 2
authentication {
auth_type PASS
auth_pass 1111
}
unicast_src_ip 192.168.27.14
unicast_peer {
192.168.27.13
}

virtual_ipaddress {
192.168.27.50 dev ens33 label ens33:0
}
}

重启服务

[root@haproxy2 ~]# systemctl restart keepalived

haproxy配置

分别在两台haproxy主机上编译安装haproxy
1.解压源码包

[root@localhost ~]# tar xf haproxy-1.8.20.tar.gz

2.编译模块

[root@localhost haproxy-1.8.20]# make  ARCH=x86_64 TARGET=linux2628 USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 USE_SYSTEMD=1  USE_CPU_AFFINITY=1  PREFIX=/usr/local/haproxy

3.复制模块到指定目录

[root@localhost haproxy-1.8.20]# make install PREFIX=/usr/local/haproxy

4.将二进制程序复制到相二进制程序目录

[root@localhost haproxy-1.8.20]# cp haproxy /usr/sbin/

5.为编译安装的HAProxy创建启动脚本

[root@localhost haproxy-1.8.20]# vim /lib/systemd/system/haproxy.service
[Unit]
Description=HAProxyLoad Balancer
After=syslog.targetnetwork.target

[Service]
ExecStartPre=/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -c -q
ExecStart=/usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /usr/local/haproxy/run/haproxy.pid
ExecReload=/bin/kill -USR2 $MAINPID

[Install]
WantedBy=multi-user.target

6.创建配置文件目录，生成配置文件

[root@localhost haproxy-1.8.20]# mkdir /etc/haproxy
[root@localhost haproxy-1.8.20]# vim /etc/haproxy/haproxy.cfg
global
maxconn 100000
chroot /usr/local/haproxy
#stats socket /var/lib/haproxy/haproxy.sock mode 600 level admin
uid 99
gid 99
daemon
nbproc 4
cpu-map 1 0
cpu-map 2 1
cpu-map 3 2
cpu-map 4 3
pidfile /usr/local/haproxy/run/haproxy.pid
log 127.0.0.1 local3 info

defaults
option http-keep-alive
option  forwardfor
maxconn 100000
mode http
timeout connect 300000ms
timeout client  300000ms
timeout server  300000ms

listen stats
mode http
bind 0.0.0.0:9999
stats enable
log global
stats uri     /haproxy-status
stats auth    haadmin:q1w2e3r4ys

listen  web_port
bind 0.0.0.0:80
mode http
log global
server web1  127.0.0.1:8080  check inter 3000 fall 2 rise 5

7.为pid文件创建一个目录

[root@localhost ~]# mkdir /usr/local/haproxy/run

8.启动服务

[root@localhost ~]# systemctl daemon-reload
[root@localhost ~]# systemctl start haproxy

在两台haproxy上配置后端web服务器和MySQL服务器

1.开启内核参数

[root@haproxy1 ~]# vim /etc/sysctl.conf
net.ipv4.ip_forward = 1
net.ipv4.ip_nonlocal_bind = 1
[root@haproxy1 ~]# sysctl -p
net.ipv4.ip_forward = 1
net.ipv4.ip_nonlocal_bind = 1

2.修改配置文件添加后端服务器

[root@haproxy1 ~]# vim /etc/haproxy/haproxy.cfg
listen http
bind 192.168.27.50:80
mode http
server web1 192.168.27.21:80 check inter 3000 fall 3 rise 5
server web2 192.168.27.22:80 check inter 3000 fall 3 rise 5

listen mysql_3306
bind 192.168.27.50:3306
mode tcp
server mysql 192.168.27.31:3306 check inter 3000 fall 3 rise 5

3.启动服务

[root@haproxy1 ~]# systemctl restart haproxy

搭建MYSQL主从

分别在两台MySQL主机上安装MySQL
1.使用一键安装脚本安装MySQL

[root@master ~]# tar xf mysql-5.6.34-onekey-install.tar.gz
[root@master ~]# vim mysql-install.sh

配置MySQL-Master

1.修改配置文件

[root@master ~]# vim /etc/my.cnf
[mysqld]
datadir=/data/mysql
log-bin=/data/bin/mysql-bin
binlog-format=row
server-id=1

2.创建二进制日志目录修改权限

[root@master ~]# mkdir /data/bin
[root@master ~]# chmod -R 700 /data/bin
[root@master ~]# chown -R mysql.mysql /data/bin

3.启动MySQL

[root@master ~]# service mysqld start
Starting MySQL... SUCCESS!

4.授权主从复制账户

[root@master ~]# mysql -e "GRANT REPLICATION SLAVE ON *.* TO 'repluser'@'192.168.27.%' IDENTIFIED BY '111111';"

5.查看二进制日志位置

[root@master~]# mysql -e "SHOW MASTER LOGS;"
+------------------+-----------+
| Log_name         | File_size |
+------------------+-----------+
| mysql-bin.000001 |       334 |
+------------------+-----------+

配置MySQL-Slave

1.修改配置文件

[root@slave ~]# vim /etc/my.cnf
[mysqld]
server-id=2
read-only

2.启动服务

[root@slave ~]# service mysqld start

3.change master to

mysql> CHANGE MASTER TO MASTER_HOST='192.168.27.31', MASTER_USER='repluser', MASTER_PASSWORD='111111', MASTER_PORT=3306, MASTER_LOG_FILE='mysql-bin.000001', MASTER_LOG_POS=1;

4.启动复制线程

mysql> START SALVE;

测试

在主服务器上导入测试数据库

[root@master ~]# mysql < hellodb_innodb.sql

查看从服务器是否复制数据

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| hellodb            |
| mysql              |
| performance_schema |
| test               |
+--------------------+
5 rows in set (0.00 sec)

主从配置完毕

配置web服务器

分别在2台web服务器上安装nginx和php-fpm
安装编译所需的各种软件

yum install -y gcc gcc-c++ glibc glibc-devel pcre pcre-devel openssl openssl-devel systemd-devel bzip2 vim lrzsz tree screen lsof tcpdump wget ntpdate net-tools iotop bc zip unzip nfs-utils expat-devel bison bison-devel zlib-devel libcurl-devel libarchive-devel boostdevel cmake ncurses-devel gnutls-devel libxml2-devel libevent-devel libaio-devel

编译安装nginx

1.解压nginx源码包

[root@web1 ~]# tar xf nginx-1.14.2.tar.gz

2.检查编译环境

[root@web1 ~]# cd nginx-1.14.2
[root@web1 nginx-1.14.2]# ./configure --prefix=/apps/nginx --user=nginx --group=nginx --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_stub_status_module  --with-http_gzip_static_module --with-pcre --with-stream --with-stream_ssl_module --with-stream_realip_module

3.编译安装

[root@web1 nginx-1.14.2]# make && make install

4.为应用程序文件建立软连接

[root@web1 nginx-1.14.2]# ln -s /apps/nginx/sbin/nginx /sbin/nginx

5.配置服务启动脚本

[root@web1 nginx-1.14.2]# vim /lib/systemd/system/nginx.service

[Service]
Type=forking
PIDFile=/apps/nginx/logs/nginx.pid
ExecStart=/apps/nginx/sbin/nginx -c /apps/nginx/conf/nginx.conf
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s TERM $MAINPID

[Install]
WantedBy=multi-user.target

6.创建启动用户

[root@web1 nginx-1.14.2]# useradd -u2000 www

7.修改配置文件

[root@web1 nginx-1.14.2]# vim /apps/nginx/conf/nginx.conf
user  www;              #服务启动时以www用户为工作进程
pid        /apps/nginx/logs/nginx.pid;

8.启动服务

[root@web1 nginx-1.14.2]# nginx

编译安装php-fpm

1.解压缩源码包

[root@web1 ~]# tar xf php-7.1.30.tar.gz

2.检查编译环境

[root@web1 ~]# cd php-7.1.30
[root@web1 php-7.1.30]# ./configure --prefix=/apps/php --enable-mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-openssl --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d --enable-mbstring --enable-xml --enable-sockets --enable-fpm --enable-maintainer-zts --disable-fileinfo

3.编译模块并复制模块到指定目录

[root@web1 php-7.1.30]# make && make install

4.复制环境配置文件，修改时区

[root@web1 php-7.1.30]# cp php.ini-production /etc/php.ini
[root@web1 php-7.1.30]# sed -i '/;date.tim/s@.*@data.timezone = "Asia/Shanghai"@' /etc/php.ini

5.配置服务启动脚本

[root@web1 php-7.1.30]# cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
[root@web1 php-7.1.30]# chmod +x /etc/init.d/php-fpm
[root@web1 php-7.1.30]# chkconfig --add php-fpm

6.复制模板配置文件

[root@web1 php-7.1.30]# cp /apps/php/etc/php-fpm.conf.default /apps/php/etc/php-fpm.conf
[root@web1 php-7.1.30]# cp /apps/php/etc/php-fpm.d/www.conf.default /apps/php/etc/php-fpm.d/www.conf

配置nginx+php

1.修改nginx主配置文件导入其他配置文件

[root@web1 ~]# vim /apps/nginx/conf/nginx.conf
include /apps/nginx/conf/server/*.conf;

2.创建新的server段配置文件

[root@web1 ~]# mkdir /apps/nginx/conf/server
[root@web1 ~]# vim /apps/nginx/conf/server/mylinuxops.conf
server {
server_name www.mylinuxops.com;
listen 80;
location / {
root /data/www;
index index.php index.html;
}
location ~ \.php$ {
root           /data/www;
fastcgi_pass   127.0.0.1:9000;
fastcgi_index  index.php;
fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
include        fastcgi_params;
}
}

3.修改php-fpm配置文件

[root@web1 ~]# vim /apps/php/etc/php-fpm.d/www.conf
user = www
group = www
listen = 127.0.0.1:9000

4.重启服务

[root@web1 ~]# nginx -s reload
[root@web1 ~]# service php-fpm start
Starting php-fpm  done

测试

创建测试页面

[root@web1 ~]# mkdir /data/www
[root@web1 ~]# vim /data/www/index.php
<?php
phpinfo();
?>

创建存放图片的nfs服务器

创建出需要共享的目录，并对其进行配置

[root@image ~]# mkdir /data/upload
[root@image ~]# vim /etc/exports
/data/upload *(rw,no_root_squash)

设置为开机启动

[root@image ~]# systemctl enable nfs
Created symlink from /etc/systemd/system/multi-user.target.wants/nfs-server.service to /usr/lib/systemd/system/nfs-server.service.

安装wordpress

1.在MySQL-Master上授权一个用于数据库操作的账户，创建一个wordpress的数据库

[root@master ~]# mysql -e "GRANT ALL PRIVILEGES ON wordpress.* TO 'wpuser'@'192.168.27.%' IDENTIFIED BY'111111';"
[root@master ~]# mysql -e "CREATE DATABASE wordpress;"
[root@master ~]# mysql -e "show databases;"
+--------------------+
| Database           |
+--------------------+
| information_schema |
| hellodb            |
| mysql              |
| performance_schema |
| test               |
| wordpress          |
+--------------------+

2.分别在后端两个web服务器上解压wordpress

[root@web1 ~]# tar xf wordpress-5.0.1-zh_CN.tar.gz

3.将解压后的数据复制到站点目录

[root@web1 ~]# cp -a wordpress/* /data/www/

4.复制work

[root@web1 ~]# cp /data/www/{wp-config-sample.php,wp-config.php}
[root@web1 ~]# vim /data/www/wp-config.php
// ** MySQL 设置 - 具体信息来自您正在使用的主机 ** //
/** WordPress数据库的名称 */
define('DB_NAME', 'wordpress');

/** MySQL数据库用户名 */
define('DB_USER', 'wpuser');

/** MySQL数据库密码 */
define('DB_PASSWORD', '111111');

/** MySQL主机 */
define('DB_HOST', '192.168.27.50');

/** 创建数据表时默认的文字编码 */
define('DB_CHARSET', 'utf8');

/** 数据库整理类型。如不确定请勿更改 */
define('DB_COLLATE', '');

/**#@+
* 身份认证密钥与盐。
*
* 修改为任意独一无二的字串！
* 或者直接访问{@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org密钥生成服务}
* 任何修改都会导致所有cookies失效，所有用户将必须重新登录。
*
* @since 2.6.0
*/
define('AUTH_KEY',         'Q8B&gE6k?}}bh|:23l/8Pq;#q$?4HT^-riv^Tnk5UcwDIf#g`I3+RJ~^+O7>nUk6');
define('SECURE_AUTH_KEY',  '?{2tjkt_KN(+:d|tWA}Th5fi!-y$xVO^sk#>F~{?B$X|#9)6S(~h`0KY?6CY|0jL');
define('LOGGED_IN_KEY',    'v:_a0a:2Eh^fj9-`&P+.i*V0#-M#jGjw<1*p/9Tea7y=q}R=Hy,Q,9qBX5Kx!ybV');
define('NONCE_KEY',        '^5g3j_7:H,_=m/T/ mB`JQxUgXFFjEkhJ)OV qy&|W}aoxQ11t_j;D;yl(w;MV46');
define('AUTH_SALT',        '8ZW}E[tXfRDd}$h02-hAgG]zZg4/NX}kM(K_M_Y|[fUz/C!.9|:lfcexu91kIe5q');
define('SECURE_AUTH_SALT', ']r+bt+7&_KkBE~!V+;}8fw|a8,&#5B+-H.ELKN.}!qhFL,LZ+Vj=p0@y5gi5Fo^F');
define('LOGGED_IN_SALT',   'jGwl&sWdAh.dNiGSy`qV.-6,DzaFYE;xG;Js*ZgM(E|7a57y(_?]^-u7>;)R<UjH');
define('NONCE_SALT',       '*Zl:=N-W!+B8kbaoY`-q)Mq8r7xK|I1^IT0;.ZMiB-Fh$?OtmD/+[![`I@)p~~Lw');
/**#@-*/

将此文件复制到web2服务器上

[root@web1 ~]# scp /data/www/wp-config.php 192.168.27.22:/data/www

分别在web服务器上挂载nfs，将图片存储到nfs上

[root@web1 ~]# mkdir /data/www/wp-content/uploads
[root@web1 ~]# mount 192.168.27.23:/data/upload /data/www/wp-content/uploads

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